6" x 12" Reusable Self-Seal Velcro Filter Media BagThe Velcro close bags are made from two kinds of polyester mesh material. The finer material is in the interior, with a coarser material on the outside. Velcro easy-close media bag to provide excellent water flow through the media.

6" x 12" Reusable Self-Seal Velcro Filter Media Bag

The Velcro close bags are made from two kinds of polyester mesh material. The finer material is in the interior, with a coarser material on the outside. Velcro easy-close media bag to provide excellent water flow through the media. Made from two kinds of polyester mesh material, the finer material is in the interior with a coarser material on the outside. No drawstrings to get caught in pump mechanisms. Can be used over and over, and is safe to bleach to clean.